postlethwaite



3 Sheets-Sheet 1.

(No Model.) 5 I O. E. POSTLETHWAITB.

LAMP EXTINGUI'SHER.

No. 400,789. Patented Apr. 2, 1889.

N PETERS, Photn-Litlwgmphcn Washington, D C.

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LAMP EXTINGUISHER.

Patented Apr. 2, 1889.

mmvzsws N. PETERS. PhcwLflIwgmphar, Washington, 0.1;

3 SheetsSheet 3,

(No Model.) v

' 01E. POSTLETHWAI-TE.

LAM]? EXTINGUI$HER. No. 400,789. Patented Apr. 2, 1889.

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UNITED STATES PATENT OFFICE.

CHARLES EUGENE POSTLETHWAITE, OF SOUTH HACKNEY, ENGLAND.

LAMP-EXTINGUISHER.

SPECIFICATION forming part of Letters Patent No. 400,789, dated April 2,1889. Application filed May 14, 1888. Serial No. 273,896. (No model.)

To all whom, it may concern.-

Be it known that I, CHARLES EUGENE POSTLETHWAITE, a subject of the Queenof Great Britain, residing at 30 Cawley Road,

v ing of the flame or flames of the lamp when the same is subjected to asudden or violent jerk or other irregular movement, all as hereinafterdescribed, and particularly pointed out in the claims.

In the accompanying drawings, Figures 1, 2, and 3 are respectively side,end, and top views of the extinguishing mechanism, dome, and burner, thecap of the dome being removed in the last figure. In Figs. 2 and 3 thedome is in section. Fig. 4 is a detached view of one of theextinguishing-shutters. Figs. 5 and 6 show a lever arranged inconnection with the extinguishing mechanism, by means of which the flamecan be extinguished without moving the detached portion. Figs. 7, 8, and9 are respectively side, end, and top views of the invention as appliedto duplex burners. Figs. l0, l1, and 12 are respectively side, end, andtop views of the invention shown applied to a duplex burner and showinga modification in the form of the extinguisher.

I will now describe the said extinguishing mechanism as applied to asingle -burner lamp in which the dome is preferably constructed in twoparts, in which A represents the detachable portion of the dome,provided with a rim, a, which rim, when the said detachable portion isin position, fits within the upper part, B, of the dome.

The extinguishing mechanism consists of the two shutters d, which areeach provided at one side with the arm d, to which is at tached the bar01 This bar is mounted on a pin, 01 secured to the frame at, which pinpasses through eyes in the projections d on the said bar, and betweenthe said projections is a spring, (Z one end of which presses against oris fixed to the frame, and the opposite end presses against or is fixedto the bar .61 so that when the spring is not restrained by the weightconsisting of the movable drum portion, as will now be described, itraises the shutter to the closed position. From the upper part of oneside of each shutter projects a pin, (1 When the detached portion of thedome is in position, it bears 011 the pins (t and the shutters cl arefolded back, whereby the springs d are compressed; but immediately thesaid detached portion is removed by any unusual jar the springs, beingfreed from restraint, raise the shutters and cause them to close overthe wick, whereby the flame is extinguished. In Figs. 1, 2, and 3 theextin guishing mechanism is shown open in full lines and the reverseposition is shown in dotted lines. 1

In Figs. 5 and 6 is showna lever arranged in connection with theextinguishing mechanism, by means of which the shutters can be raisedand the flame extinguished. In this case the pins d are mounted on theupper ends of levers e, to the lower ends of which are attached the bars6, each bar having projections 6? through eyes in which the pin dpasses. One end of the springrl presses against or is fixed to the frame(Z and the opposite end presses against or is fixed to the bar e. Thebar d is mounted on the pin (1 independently of the springs. When thedetached portion of the dome is in position, the levers c are depressedand the shutters fall back by reason of their own weight, and on itbeing desired to extinguish the flame the outer end of the lever F,which is pivoted at f, is depressed, and the arms of the forked innerend being thereby brought against the lower portions of the shutters thelatter are raised into their closed positions. If, when the shutters areopen, the detached portion of the dome is displaced, the pins (1 arefreed from the weight thereof, the springs d extend and raise the leverse, and the projections 6 come into contact with the bars d and close theshutters. In Figs. 5 and 6 the extinguishing mechanism is shown open,and the reverse position of the shutters when closed by the action ofthe lever F is shown in dotted lines.

Figs. 7, 8, and 9, as before stated, are respectively side, end, and topviews of this invention applied to a duplex burner. The shutters (I, oneof which is arranged on the outside of each wick-holder, the levers c,and parts connected therewith are arranged substantially as shown inFigs. 5 and 6, and the sliding plates g, attached to the frame g, (whichis guided by the pin gt) are arranged between the two wick-holders, thesaid frame being raised when the detached portion of the dome isdisplaced by the levers e or the arms (1 coming into contact with thepins 9 hen the mechanism lastly described is provided with a lever forclosing the shutters at will, the said lever may be forked, ashereinbefore described. lVhen closed, the sliding plates g meet theshutters (Z, as shown in dotted lines. In Figs. 7 and 8 theextinguishing mechanism is shown open in full lines and closed in dottedlines.

Figs. 10, 11, and 12 are respectively side, end, and top views of thisinvention applied to a duplex burner, in which a modified form ofextinguishing mechanism is employed. The lovers 6 are constructed andarranged as hereinbefore described. and the frame g and sliding plates 9are substantially the same as shown in Figs. 7, 8, and 9; but theshutter (Z consists of a plate which is pivoted to the ends of the arms9 of the sliding plates g. At the lower portion of the plate dis aprojection, 71 which, when the extinguishing mechanism is open, comesinto contact with the wick-holder and prevents the said plate fromfalling back. At the side of the plate d is a projection, 72., which inthe upward movement of the plate cl comes into contact with the pin1",projecting from the side of the top of the wick-holder and therebycauses the plate L1 to be folded over the top of the wick. hen aleversuch as Fis arranged in connection with the modified extinguishingmechanism lastly described, the inner end thereof bears against theframe g.

In Figs. 10 and 11 the open position of the extinguishing mechanism isshown in full lines and the closed position iii dotted lines: In Fig; 12the said mechanism is illustrated in the open position.

The object in making the dome in two parts, as before described, whencombined with the automatic extinguishing mechanism is that saidextinguishing mechanism may be held open by the detached portion whenthe same is in position and may be free to automatically close over theflame or flames when said detached portion is displaced.

\Vhat I claim is 1. The automatic extinguisher consisting of the pivotedshutters provided with pins, and the detachable weighted dome to restupon said pins, and the springs, substantially as described, whereby,when the dome is in place, it serves by its weight upon the pins to holdthe shutters open against the action of the springs, as set forth.

2. The extinguishing mechanism for singleburner fiat-wick oil-lamps,consisting of the combination of the shutters (l with pins (Z arms d,and bars (Z the springs d, and the pins d, and the movable weightsupported on the pins (1", substantially as described.

3. The extinguishing mechanism for singleburner flat-wick oil-lamps,consisting of the combination of the shutters d, with arms (1' and bars(1 the spring (1, the pins (1, the le vers c, with bars 6', pins (Zprojection e and the lever F, and movable weight supported on the pins(1 substantially as described.

4. The extinguishing mechanism of duplex flat-wick oil-lamps, consistingof the shutters (Z, with arms (1 and bars (1*, the springs cl, the pins(1, the levers c, with bars a, pins (1 and projections c the frame g,and movable weight supported on the pins (Z substantially as described.

CHARLES EUGEi'E POS'lLll'llIWAI'lE.

\Vitnesses:

Geo. E. VAUGHAN,

57 Chancery Lane, London. 0. R MEARING,

Sz'donoufh Street, London.

